JPS643624A - Waveguide type optical interferometer - Google Patents

Waveguide type optical interferometer

Info

Publication number
JPS643624A
JPS643624A JP62159370A JP15937087A JPS643624A JP S643624 A JPS643624 A JP S643624A JP 62159370 A JP62159370 A JP 62159370A JP 15937087 A JP15937087 A JP 15937087A JP S643624 A JPS643624 A JP S643624A
Authority
JP
Japan
Prior art keywords
liquid crystal
optical interferometer
light guide
gap
waveguide type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62159370A
Other languages
Japanese (ja)
Inventor
Masao Kawachi
Norio Takato
Kaname Jinguji
Akio Sugita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP62159370A priority Critical patent/JPS643624A/en
Publication of JPS643624A publication Critical patent/JPS643624A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1326—Liquid crystal optical waveguides or liquid crystal cells specially adapted for gating or modulating between optical waveguides

Abstract

PURPOSE:To obtain a waveguide type optical interferometer which does not depend on the polarization direction of incident light by charging a liquid crystal which is a high double refractive index material to a part of a light guide constituting the optical interferometer and compensating part of the double refractions of the light guide by utilizing the electro-optic effect of the liquid crystal. CONSTITUTION:A gap 21 which is dug to the extent of crossing the light guide and arriving at a silicon substrate 1 (substrate) is formed in part of the light guide 5 and a liquid crystal layer 21a (liquid crystal) is filled in the gap 21. Electrodes 23a, 24a for controlling the liquid crystal molecular orientation of the liquid crystal layer 21a are provided in the gap 21. The double refractiveness of the light guide 5 constituting the waveguide type optical interferometer is compensated by the large refractive index anisotropy of the liquid crystal 21 filled into the light guide gap 21, by which the dependency of the optical interferometer on polarization is effectively eliminated. The stable operation of the optical interferometer which does not depend on the polarization direction of the incident light is thereby obtd.
JP62159370A 1987-06-26 1987-06-26 Waveguide type optical interferometer Pending JPS643624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62159370A JPS643624A (en) 1987-06-26 1987-06-26 Waveguide type optical interferometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62159370A JPS643624A (en) 1987-06-26 1987-06-26 Waveguide type optical interferometer

Publications (1)

Publication Number Publication Date
JPS643624A true JPS643624A (en) 1989-01-09

Family

ID=15692346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62159370A Pending JPS643624A (en) 1987-06-26 1987-06-26 Waveguide type optical interferometer

Country Status (1)

Country Link
JP (1) JPS643624A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008197500A (en) * 2007-02-14 2008-08-28 Nec Corp Optical module
WO2011108617A1 (en) * 2010-03-05 2011-09-09 日本電気株式会社 Athermal optical waveguide element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008197500A (en) * 2007-02-14 2008-08-28 Nec Corp Optical module
WO2011108617A1 (en) * 2010-03-05 2011-09-09 日本電気株式会社 Athermal optical waveguide element

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